I am considering buying a small trailer to tow with my 2003 CR-V.
Web info says I will need a Tail Light Converter because the CR-V has
(amber) turn signals that are separate from the brake lights.

The Honda (optional) Trailer Light Harness plugs into a connector
behind the
left panel in the cargo area and extends a pigtail out under the
bumper with
a connector for the trailer.
The Honda Trailer Light Harness has a built-in 'converter'.

Can anyone tell me what it does?
Is it a Tail Light Converter?
Can you point me to a website where I can see a wiring diagram of the
harness?

Thanks for help
Carl

Got mine from the hitch dealer. Plugs right into the socket behind the
panel. I redid it a bit to run outside the car to the hitch, but it is
just wiring. no converter, really. I would assume our '99 is similar.

I think it was made by Valley, or another hitch maker. Almost any
hitch dealer should have it, or be able to order it.